Term Name:	4-phosphoerythronate dehydrogenase activity
Synonyms:	4-O-phosphoerythronate dehydrogenase activity, 4-phospho-D-erythronate:NAD+ 2-oxidoreductase activity, 4PE dehydrogenase activity, erythronate-4-phosphate dehydrogenase activity, PdxB, PdxB 4PE dehydrogenase activity
Definition:	Catalysis of the reaction: 4-phospho-D-erythronate + NAD+ = (R)-3-hydroxy-2-oxo-4-phosphonooxybutanoate + H+ + NADH.
Ontology:	GO: Molecular Function [GO:0033711]    QuickGO    AmiGO